De-emphasize subdomains when highlighting URLs. https://redmine.stoutner.com/issues/345

diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
index 88e2726046cb14383dfa7593f187a2920feb2add..67e6a8dc32eaf8266f053b3a7912445ebdda6252 100644 (file)
--- a/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
+++ b/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
@@ -4528,17 +4528,48 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     }
 
     private void highlightUrlText() {
+        // Get the URL string.
         String urlString = urlTextBox.getText().toString();
 
+        // Get the index of the `/` immediately after the domain name.
+        int endOfDomainName = urlString.indexOf("/", (urlString.indexOf("//") + 2));
+
+        // Create a base URL string.
+        String baseUrl;
+
+        // Get the base URL.
+        if (endOfDomainName > 0) {  // There is at least one character after the base URL.
+            // Get the base URL.
+            baseUrl = urlString.substring(0, endOfDomainName);
+        } else {  // There are no characters after the base URL.
+            // Set the base URL to be the entire URL string.
+            baseUrl = urlString;
+        }
+
+        // Get the index of the last `.` in the domain.
+        int lastDotIndex = baseUrl.lastIndexOf(".");
+
+        // Get the index of the penultimate `.` in the domain.
+        int penultimateDotIndex = baseUrl.lastIndexOf(".", lastDotIndex - 1);
+
+        // Markup the beginning of the URL.
         if (urlString.startsWith("http://")) {  // Highlight the protocol of connections that are not encrypted.
             urlTextBox.getText().setSpan(redColorSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+
+            // De-emphasize subdomains.
+            if (penultimateDotIndex > 0)  {  // There is more than one subdomain in the domain name.
+                urlTextBox.getText().setSpan(initialGrayColorSpan, 7, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            }
         } else if (urlString.startsWith("https://")) {  // De-emphasize the protocol of connections that are encrypted.
-            urlTextBox.getText().setSpan(initialGrayColorSpan, 0, 8, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            if (penultimateDotIndex > 0) {  // There is more than one subdomain in the domain name.
+                // De-emphasize the protocol and the additional subdomains.
+                urlTextBox.getText().setSpan(initialGrayColorSpan, 0, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            } else {  // There is only one subdomain in the domain name.
+                // De-emphasize only the protocol.
+                urlTextBox.getText().setSpan(initialGrayColorSpan, 0, 8, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            }
         }
 
-        // Get the index of the `/` immediately after the domain name.
-        int endOfDomainName = urlString.indexOf("/", (urlString.indexOf("//") + 2));
-
         // De-emphasize the text after the domain name.
         if (endOfDomainName > 0) {
             urlTextBox.getText().setSpan(finalGrayColorSpan, endOfDomainName, urlString.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);